Centrifugal machine.



Nn. 685,553. Patented not. 29', moli J. J. BEnmGAN; CENTRIFUGAL MACHINE.

(Application led Dec. 26, 1900.) (No Model.)

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-JOHN JOSEPH BERRIGAN, OF ORANGE, NEW JERSEY, ASSIGNOR TO FRANCIS J. AREND, OF NEW YORK, N. Y., AND JOHN BERNSTROM, OF STOCKHOLM,

SWEDEN.

-CENTRIFUGAL MACHINE.

ll`SPI'EICIEICLATIOBT forming part of Lettersatent No. 685,558, dated October 29, 1901.

Application iiled December 26, 1900. Serial No. 41,095. (No model.)

To all whom it may con/cern.-

Be it known that I,JOHN JOSEPH BERRIGAN, 'of Orange, Essex county, New Jersey, have invented a new and useful Improvement in Centrifugal Machines, of which the following is a specification. My invention relates to a machine for ef- 'lfecting bythe .action of centrifugal force the 'separation of the constituents of a lfluid mass and the delivery thereof vcontinuously from the machine during its operation.

My invention consists, broadlyof acentriffugal machine having a receptacle .for the comybined constituents to be separated rotary on a central axis and means for revolving said receptacle about a parallel axis located within its perimeter; also, in combination, with lsuch a receptacle, of means for removing the combined constituents separately therefrom; also, in the construction of said receptacle in the ferm of an inverted conical frustuxn, whereby one consti-tuent to be separated is removed over the upper edge of said frus- =tum by the action of centrifugal force; also, in the combination of the rotary receptacle for'the combined constituents to be separated, rotating on a central axis with a drum containing said receptacle and rotating on a parfallel and different axis; also; in the various combinations hereinafter more particularly set forth.

In another application for Letters Patent, Serial No. 38,470, series of 1900, led December 5, 1900, I have made certain claims which broadly cover and include the structure herein disclosed. It is therefore to be understood that the subjectmatter of said claims in said ap lication is not herein claimed by me.

n the accompanying drawings, Figure 1 is a vertical section, on the line 1 1, of the upper portion of a centrifugal machine embodying my invention. Fig. 2 is a top'view of said machine, showing the cover 9 partly ,broken away.

Similar characters of reference indicate like parts.

3 is the upper portion of the standard on which the machine is supported, which standard .is preferably cast in onepiece with the cup 4. Within the cup 4 is the rotary drum 'and drum to make a tight joint.

5, which is secured `upon the hollow shaft 6. T he shaft 6 extends through a gland 44,which rests upon an annular plate 45, secured to the top of standard 3. Beneath said plate is a packing-ring 46, which is received in a recess 47 and which bears against the exterior ofthe gland 44. The shaft 6, and with it the drum 5, are rotated by any suitable means. In the drum 5 is eccentrically placed the receptacle 8, which is in the form of an inverted conical Y frustum. The drum 5 and receptacle 8 are closed above by a cover 9, having a flange 10, which is internally threaded to engage with a thread formed on the drum periphery. A gasket 11 may be interposed between cover In the cover 9 is a central4 opening to receive the iianged plug 12, which supports the inletconduit 13. Secured on theunder side of the cover in any suitable way is a plate 15, having a longitudinal channel 16. (Indicated by dotted lines, Fig. 1.)

The combined constituents to beV separatedas, for example, a solid and liquid in iinid mass-are introduced into receptacle 8 through the conduit 13 and thence pass to the channel 16, through which they are ejected (by centrifugal force due to the rotation of the drum 5) against the inner periphery of the receptacle 8, and preferably against that part of said periphery which is farthest from the axis of rotation of said drum. The liquid constituent of the material escapes from the receptacle 8 through one of the openings f f rbc., which are perimetrically disposed in the wall of receptacle 8, and thence into the drum 5. It then flows through tube 26, which extends through'the bottom of drum 5, toa stationary pan'27, the periphery`28 of which extends about up to the edge of cup 4. .I ust below drum 5 this cup has an annular partition 29, through an opening in which the tube 26 passes. The liquid escaping through the 1 tube 26 is therefore delivered into pan 27,

metrically by the arc c f d.

which at its upper end is journaled in the plate 15 and at its lower end in the bottom of drum 5. Between the bottom of the receptacle 8 and the bottom of drum 5 the shaft carries a gear 53, with which engages gear 36 on the upper end of the solid shaft 37, which, as shown, extends through the hollow shaft 6. The shaft 37 is to be rotated in the same direction as the shaft 6 by any suitable means. By reason of the gearing 53 and 36, interposed between shaft 5l and shaft 37, the receptacle 8 will be rotated in a direction rela? tively opposite to that in which the drum 5 is rotated. In the cover 9 is provided an opening 19, through which the solid separated from the liquid is ejected.

The operation of the machine is as follows: The receptacle 8 rotates on its own axis on shaft 51. That axis being journaled in the drum 5 revolves around the axis of rotation of said drum. The two axes are relatively parallel. The combined constituents, solid and liquid, to be separated being projected, as described, against the inner periphery of receptacle at the part thereof farthest from the axis of rotation of drum 5, the liquid constituent then escapes through that aperture of the series fff, rbc., which likewise is farthest from said axis of rotation. The liquid then entering the drum 5 forms (by the action of the centrifugal force due to the rotation of said drum) a ring lying against the inner periphery of said drum. The inner boundary of this ring may be represented by the circle h in Fig. 2 and the vertical lines 71. in Fig. 1. From Fig. 2 it will be seen that the inner perimeter of said ring (the circle 7L) intersects the inner perimeter of the receptacle 8 at the points c d and also passes through the aperture f. It is therefore manifest that while the machine is in operation a part of the inner conical surface of the receptacle 8 is immersed in the ringthat is to say, that area of the surface which is measured vertically by the distance from the aperturef to the top of receptacle 8 and peri- Itis also manifest that all of the remaining inner conical surface of the receptacle 8, and especially that portion which is measured perimetrically by the arc c e CZ, is not immersed in said ring, and hence is substantially dry when the machine is in operation. This area of the in ner surface of the receptacle 8 which is measured perimetrically by the arc c c d I call hereinafter the dry surface. When aiiuid mass of combined solid and liquid is introduced in the manner above described into receptacle 8, the liquid only escapes through the aperturefinto drum 5, leaving the solid deposited on that portion of the inner surface of said receptacle perimetrically measured by the are c f d. The receptacle 8, however, has its own motion of rotation about the axis 51 and in the opposite direction to that of the drum 5. One effect of this motion is to constantly change that portion of thel periphery of receptacle S which is immersed in the liquid ring, or, in other words, to cause the receptacle to rotate with respect to the ring, which with reference to said receptacle may be regarded as fixed. Therefore the solid which is constantly deposited from the ring is continuously carried out of the ring by the revolution of the surface upon which it is deposited, and this surface when it is included in the arc c e d becomes a dry surface. Another effect of the individual rotation of the receptacle 8 is that also due to the inclination of the inner periphery of the receptacle 8, whereby the deposited solid is caused by the centrifugal force to move toward the upper edge of the receptacle and when it comes opposite the opening 19 to escape therefrom and out upon the upper surface of the cover 9. This opening 19 is so placed that the solid reaches the dry surface in the receptacle 8 and is exposed thereon before it escapes from said opening. It may traverse any proportion of said dry surface as may be desired, and this proportion may be al tered in various ways, as by enlarging or reducing the area of the escape-aperture 19 or varying the circumferential length or by placing it nearer to or farther from either the point c or the point (Z.

In order to avoid complication, I have here shown the solid constituent escaping by the opening 19 as simply delivered upon the cover 9.

I claim- 1. In a centrifugal machine, a receptacle for the combined constituents to be separated ro tary on a central axis, and a support for said receptacle; the said support being constructed to rotate around an axis parallel to the axis of rotation of said receptacle and included within the perimeter thereof.

2. In a centrifugal machine,a receptacle for the combined constituents to be separated rotary on a central axis, means for introducing said constituents into said receptacle and a support for said receptacle; the said support being constructed to rotate around an axis parallel to the axis of rotation of said receptacle and included within the perimeter thereof.

3. In a centrifugal machine,a receptacle for combined constituents to be separated in the form of an inverted 'conical frustum rotary on a central axis, and a support for said receptacle; the said support being constructed to rotate around an axis parallel to the axis of rotation of said receptacle and included within the perimeter thereof.

4. In a centrifugal machine, a receptacle for combined constituents to be separated rotary on a central axis and provided with outlets 1ocated at points to permit ejection of the constituents separately by centrifugal force, and a support for said receptacle; the said support being constructed to rotate around an axis ico Ifo

parallel to the axis of rotation of said receptacle and included within the perimeter thereof.

5. In a centrifugal machine, a rotary drum and a rotary receptacle for the combined constituents to be separated disposed therein, the said drum and receptacle rotating on parallel and different axes and the said receptacle having an opening in its wall permitting fluid communication with said drum.

6. In a centrifugal machine, a rotary drum and a rotary'receptacle for the combined constituents to be separated disposed therein, the said drum and receptacle rotating on parallel and different axes in opposite directions and the said receptacle having an opening in its wall permitting iiuid communication with said drum.

7. In a centrifugal machine, a rotary drum and a rotary receptacle for the combined constituents to be separated disposed therein, the said drum and receptacle rotating on parallel and different axes both included within the perimeter of said receptacle, and the said receptacle having an opening permitting fluid communication with said drum.

S. In a centrifugal machinma receptacle for the combined constituents to be separated, a central shaft supporting said receptacle, a support wherein said central shaft is pivoted, 3d a hollow. rotary shaft carrying said support, a rotary shaft extending through said hollow shaft and gearing between said hollow shaft and the central shaft of said receptacle. 9. In a centrifugal machine, the combina- 35 tion of the rotary drum 6 having outlet 26, the

cover 9 therefor provided with openings 13 and 19 and the rotary receptacle 8 within said drum having peripherical openings and supported on an axis eccentricto the axis of said drum.

l0. In a centrifugal machine, the combination of the drum 5 supported on the rotary hollow shaft 6 and having the outlet 26, the cover 9 for said drum provided with openings 13 and 19, the rotary shaft 37 within shaft 6, receptacle S supported on shaft 5l journaled in said drum and provided with peripherical openings, and gears 35 and 36 be# tween shafts 37 and 51.

JOHN JOSEPH BERRIGAN.- Witnesses:

JOHN S. PAUL, ROBERT H. HEEP. 

